Fan housing



FIG. 1 is a front perspective view of a fan housing showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a top view thereof; and,

FIG. 4 is a left side view thereof; the right side being a mirror image.

The bottom and rear forms no part of the claimed design. The broken-line showing of environmental structure in FIGS. 1, 3 and 4 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a fan housing, as shown and described. 